悬停时的关键帧动画

Question

我一直在关注 CSS 关键帧动画的示例，代码如下：-

.pulse-animation {
  margin: 50px;
  display: block;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: #ff8717;
  cursor: pointer;
  animation: pulse 2s infinite;
  float: left;
}

.pulse-animation:hover {
  animation: none;
}

@keyframes pulse {
  0% {
    -moz-box-shadow: 0 0 0 0 rgba(204, 169, 44, 0.4);
    box-shadow: 0 0 0 0 rgba(204, 169, 44, 0.4);
  }
  70% {
    -moz-box-shadow: 0 0 0 30px rgba(204, 169, 44, 0);
    box-shadow: 0 0 0 30px rgba(204, 169, 44, 0);
  }
  100% {
    -moz-box-shadow: 0 0 0 0 rgba(204, 169, 44, 0);
    box-shadow: 0 0 0 0 rgba(204, 169, 44, 0);
  }
}

<span class="pulse-animation"></span>
<img class="pulse-animation" src="https://randomuser.me/api/portraits/women/1.jpg" />
<img class="pulse-animation" src="https://randomuser.me/api/portraits/women/2.jpg" />
<img class="pulse-animation" src="https://randomuser.me/api/portraits/women/3.jpg" />
<img class="pulse-animation" src="https://randomuser.me/api/portraits/women/4.jpg" />

我尝试让动画仅适用于悬停但它不起作用，我也尝试更改悬停动画但它仍然不起作用所以任何人都可以提供帮助。

Answer 1

如果你想在 :hover-element 上使用动画，你应该为 :hover-element 应用动画。

.pulse-animation {
  margin: 50px;
  display: block;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: #ff8717;
  cursor: pointer;
 
  float: left;
}

.pulse-animation:hover {
   animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    -moz-box-shadow: 0 0 0 0 rgba(204, 169, 44, 0.4);
    box-shadow: 0 0 0 0 rgba(204, 169, 44, 0.4);
  }
  70% {
    -moz-box-shadow: 0 0 0 30px rgba(204, 169, 44, 0);
    box-shadow: 0 0 0 30px rgba(204, 169, 44, 0);
  }
  100% {
    -moz-box-shadow: 0 0 0 0 rgba(204, 169, 44, 0);
    box-shadow: 0 0 0 0 rgba(204, 169, 44, 0);
  }
}

<span class="pulse-animation"></span>
<img class="pulse-animation" src="https://randomuser.me/api/portraits/women/1.jpg" />
<img class="pulse-animation" src="https://randomuser.me/api/portraits/women/2.jpg" />
<img class="pulse-animation" src="https://randomuser.me/api/portraits/women/3.jpg" />
<img class="pulse-animation" src="https://randomuser.me/api/portraits/women/4.jpg" />

Answer 2

:hover 是您将鼠标悬停在该元素上方时的状态。当您不悬停时，您不希望有动画，因此您将 animation: none; 设置为默认状态 .pulse-animation。如果将鼠标悬停在 class .pulse-animation 上，则设置 animation: pulse 2s infinite;

看下面的例子

.pulse-animation {
  margin: 50px;
  display: block;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: #ff8717;
  cursor: pointer;
  animation: none;
  float: left;
}

.pulse-animation:hover {
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    -moz-box-shadow: 0 0 0 0 rgba(204, 169, 44, 0.4);
    box-shadow: 0 0 0 0 rgba(204, 169, 44, 0.4);
  }
  70% {
    -moz-box-shadow: 0 0 0 30px rgba(204, 169, 44, 0);
    box-shadow: 0 0 0 30px rgba(204, 169, 44, 0);
  }
  100% {
    -moz-box-shadow: 0 0 0 0 rgba(204, 169, 44, 0);
    box-shadow: 0 0 0 0 rgba(204, 169, 44, 0);
  }
}

<span class="pulse-animation"></span>
<img class="pulse-animation" src="https://randomuser.me/api/portraits/women/1.jpg" />
<img class="pulse-animation" src="https://randomuser.me/api/portraits/women/2.jpg" />
<img class="pulse-animation" src="https://randomuser.me/api/portraits/women/3.jpg" />
<img class="pulse-animation" src="https://randomuser.me/api/portraits/women/4.jpg" />

Answer 3

如果您希望它仅在悬停时起作用，请从 .pulse-animation 中删除动画并将动画添加到 :hover，如下所示：

.pulse-animation {
  margin: 50px;
  display: block;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: #ff8717;
  cursor: pointer;
  float: left;
}

.pulse-animation:hover {
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    -moz-box-shadow: 0 0 0 0 rgba(204, 169, 44, 0.4);
    box-shadow: 0 0 0 0 rgba(204, 169, 44, 0.4);
  }
  70% {
    -moz-box-shadow: 0 0 0 30px rgba(204, 169, 44, 0);
    box-shadow: 0 0 0 30px rgba(204, 169, 44, 0);
  }
  100% {
    -moz-box-shadow: 0 0 0 0 rgba(204, 169, 44, 0);
    box-shadow: 0 0 0 0 rgba(204, 169, 44, 0);
  }
}

Answer 4

在这里你要删除.pulse-animation 或 animation 上的动画：none;在 .pulse-animation 上并在悬停时添加相同的属性 .pulse-animation:hover{ }

.pulse-animation {
  margin: 50px;
  display: block;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: #ff8717;
  cursor: pointer;
  animation: none;
  float: left;
}

.pulse-animation:hover {
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    -moz-box-shadow: 0 0 0 0 rgba(204, 169, 44, 0.4);
    box-shadow: 0 0 0 0 rgba(204, 169, 44, 0.4);
  }
  70% {
    -moz-box-shadow: 0 0 0 30px rgba(204, 169, 44, 0);
    box-shadow: 0 0 0 30px rgba(204, 169, 44, 0);
  }
  100% {
    -moz-box-shadow: 0 0 0 0 rgba(204, 169, 44, 0);
    box-shadow: 0 0 0 0 rgba(204, 169, 44, 0);
  }
}

<img class="pulse-animation" src="https://randomuser.me/api/portraits/women/1.jpg" />
<img class="pulse-animation" src="https://randomuser.me/api/portraits/women/2.jpg" />
<img class="pulse-animation" src="https://randomuser.me/api/portraits/women/3.jpg" />
<img class="pulse-animation" src="https://randomuser.me/api/portraits/women/4.jpg" />

悬停时的关键帧动画

keyframe animation on hover

html

css

keyframe